Revert "Use the "minimal" packages list, rather than the "standard" one." (Closes: #7881)

This reverts commit e0e0802f093980a40f419e952364eef790298171.
Revert "Prevent auto-installation of console-common: conflicts with plymouth."

This reverts commit 64693a9b63e351ca82716bfc38102c2008f09af5.

This patch actually breaks the build.
Install Plymouth via chroot_local-hooks.

In lb 2.x, the "standard" packages list pulls console-common in, which plymouth
conflicts with, so we have to deal with that at this stage.

This implies to patch the plymouth initscript via chroot_local-hooks too,
as chroot_local-patches are applied before we run our hooks, so before
this file is installed.
Update symlink target to fontconfig settings snippets (#7882).

Some of these were moved to /usr in Jessie.